C-Spine lecture3 Flashcards
abnormal acceleration deceleration of head, neck and torso
whiplash
0-50 ms during whiplash
car seatback pushes torso forward, straightening of T and C spine while head remains stationary
principle cervical trauma site at 0-50ms
craniovertebral junction
75 ms during whiplash
phase with maximal elongation of vertebral artery. s-shaved curve with flexion at the upper levels and hyper extension at the lower levels
at 75 ms, physiologic extension limits were exceeded at
the intervertebral levels of C6-T1
brain injury with whiplash
when head is thrown back, brain collides with front of skull. opposite happens when head is thrown forward
one thing to note about symptoms of WAD
they are highly variable and non specific
____ percent of patients will become chronic
20-25%
Prognostic indicators for chronic WAD (high evidence)
Elevated initial self reported pain (7/10), Extreme disability (NDI>40/100)
increased sensitivity to ____ is associated with ongoing disability after whiplash
cold
low self-efficacy, catastrophizing, lower edu level, reduced ROM, anxiety are all…
associated with ongoing pain after whiplash
T/F direction of impact is associated with ongoing pain in WAD
F
Grade 0 QTF
No complaint about the neck. no physical signs
Grade 1 QTF
Neck complaint of pain, stiffness, or tenderness only. no physical signs
Grade 2 QTF
neck complaint AND MSK signs. MSK signs include decreased ROM and point tenderness.
Grade 3 QTF
Neck complaint AND neuro signs. Neuro signs include decreased or absent DTR, weakness and sensory deficits
Grade 4 QTF
Neck complaint AND fracture or dislocation
How long should pts wear a soft collar
for WAD 2 & 3, first 72 hrs (crawford found no benefit in functional recovery